Gear-cutting machine.



C. E. DERR. GEAR cumrvc MACHINE," APPLICATION FILED MAYZI, 1914. RENEWED JAN, 13,1819.

Patented Mar. 18,-1919.

3 QHEETS-SHEEI'I www C. E. DER. EEN? CUTIING MACHINE. APPuc/xrmw msn new/21,1914. ne

Patented Maw` 18, 1919.

C. E. DEER. GEAR CUTING VIACHN APPLscATroN m20 MAY 27. 19m. mmv/ED uw'. 13, 1919.

mwummmmmmmwummm w in. www

Specceion of etters Patent.

i? whom may conceive.' Be it Known ighat L CHARLES E. Enna, a y eiliZ-en of tile vUnited taten and resident oi u esroii:a Vayne county, State of Michigan, *if ilove inveiiexi eeiain new and usefull .ini-

of 'ini ifo tine guiding n omis of the l5 'iooi ezifi'iei permit of the edgiietinent C-' iie tool So @hat i'xe angie o-ii'S cutting 'fece ieietiye "lo iis path o1c .travel may be if'zii'ied.

Otiief from *the ioiiowing descrition inken Wiih die diawinge which fori a. pmi. of this Speeiieetion and which iiiuS-iute one ein- *oo/ii ent the invention.

ien' View of e machine' eni- *l 'e eiei'ntien of lie n'izieiiine @einen ioi'n the other l section epproxinmteiy u is i. seeoien approximaty 'die iine oi' Fig. l; Ad ig. o is e. vertical Keeiionoi View tiirongii o, o the iooi. caiieiend ehe tooi holder;

and

Eig. Y is a Section on the line 7J! o efeiing io 'die mwings the i'anie or boei. of ne nie/inne indieeied at 10, and atone end thereof is a Mimik Supporting mecha.- nisin, the eoiidie il oi which is snown in Fig., .i es snppoi'ing the blank Any Snitnbie'ineuns may be einnioyed foi' producing e faim-ive *soiiingg motion between blank and enif'oei' '5o gi e *Jie ooth, sneh as ziiu iiius eai .in e. @85,95% in which one einniz ioiieii on i113: 'pitch @unece i" end of 'the nieeiiine is mounti connectobjects of Jdoe invon'ion 'will appear 1 l t 1 I .-fwnh a bevel gear snppored in a. ojfeeiet '-'U i8v represents ibhe opera-ting 'need of *die ram, upon Whieh is inouned a-vtooi carrier o1' support 19, having atransverse sliding -eonneebion with the opeiating need by the dove mii L0 and fsiidewoy 121. Ene tool suppoi' comprises e paix' of sepmaied uplights 22 beiween which is pivoted e @ooi apron 23 having n forwardly extening part in which the ooi heide!- 25 is mounted.. A Spring 26 secufed no the Support at one end and to en idjusting boit 27 on 'the Li-pron holds the letter yieidingiy in normei or cwi'- ting position. 'The apron may be eie from cutting posicion., es on ite reinen s'ioize. by a. eem mechanism comprising en erin 28. keyed to the pivot 29 of he tooi epon com 30, shown indei-ed lines in Fig. 2. Shaft 3i upon which Sei eain is mounife'i and whiehfims n siiding keyed connection 355 34 on the opei'ating head i8 o i/iie itam,- n companiongeai having n Simiiei' Siiding' keyed eonneoion 3S with a. 37, a bevel geen B8 on Said izi'e-e shaft? anni n segment 39 meshing wii ine geef 38 and mounted on a beii omni; 4i() opeeed by ay eam il omed in 'the y-iviieei le hereinabove refereed to. it viii be uniierstood inet die Sliding oon nection'i niiows for the Siieiing movement of the 111m 1 2 sind izLe connection die transverse motion of jne tool supgor'. 19 i'eintive 'to the rain.

Means ae provided for opei' ng in Conjunotion With he i'eoipi'ocfiting movement of the min i2: to give to Vthe tooi suppoi't a movement in e genei'niiy obiique path 'mine tive to the face of the blank B. in the einbodii'nent of the invention shown this means a Jani slot 43 therein, and a pin or ioiiei mountedon he tool support 19 and Coperating with Said @am siot. For fie qvmpose of supporting time pin 44 adjacent the Piate 42 the 'support 19 is foi-med Wih en eini 4-5 which may be an integrali part of the support. The pin 44 is secured therein e. suiaioie sieeve l-( and nu?, 47, its iov-Ier emi. and tile miie? are lubriciefi vby n renee en 48 feeding iuoricnn hi'oug o. eenini einmnei infile pin, Thus, as tile min l2 inovee the tool support 3.9 forwf "diy, ine inef is ai the seme time caused o intein `v conforming to the path of ihe com sio 43 and with 2i Cain gioie? shown iieein, "gi

oiiiiqne mii seniotooi moves in n gei'ieialv Iii/v vis brackets eine; secured to one and arranged to slide in the. other. The spring` b` under compression .at all times there constant tendency to press the pin lllagainst the outside ieee of the cam slot 43.

The -ain plate is mounted tor adjustment in two distinct resi ect-s, that is, about ai: airis which alters the obliquity oi' the cani slot, and bodily transversely ot the machine.. rl1 e obtain the iirst ci these adjustments the plate is "ounted upon a support or table 53 upon which area, series et studs (three are shown), which project into arc shaped slots in the plate, 'lhese slots are arranged about a common center so that the plate may be turned on a trunnion 55 the axis ot which preferably lies somewhere in the cam slot shown,'the pin lill being positioned at that point in Fig. l of the draiviiigs, thus making easier the adjust ment of the plate. rihe movement oi' Vthe cam plate is obtained through bolts 56 in a flange 57 on the table onerbolt being' loosened. and the other tightened to turn the plate, and a scale 5S is provided to show the degree otangula-rity of the'cam slot, lWhen' the plate is properly positioned relative to the table it is secured thereto by tightening the studs 54.

rllhe other adjustment of" the cam plate is obtained by inovingthe table For this purpose the table has a dovetail mounted in a slideway 60 in a suitable part of the frame or bed ot the machine, as in the bracket S1, this slidevvay being arranged transverselyv of the machine and the table being movable bodily in it. The table is adjusted on the machine by a positioning bolt (i2 which may be screwed into the bracket 6l a greater or less distance as desired, the flange 63 on said bolt carrying the table with it through the medium of the piece 64 seouredto the outer edge oi' the table. The lock nuts G5 secure the bolt 62 in adjusted pbsition and carry table with them in the outward adjustment-oi' the bolt. A scale (Sti shows the degree of adjustment of the table relative to the frame of the machine..

lt will be observed that, as shown in the drawings, the tool holder Q5 extends in a generally 'oblique direction, being approxi-l mately parallel With the general direction of the cam slot 43, so that the face t of the tool T, mounted in the tool holder is substantially at a right angle to the genera-l direcy tion ot travel of said tool. Since the cam neet/gees plate 4-2 is so 'mounted that the degree 'of obliqnity et the cani may be changetbit is desirable that the tool be so mounted that it may be readily adapted to the various angles ot' the cam slot and its tace always 70 maintained at the most nearly correct cutting` angle, in the present embodiment of the invention the tool holder is so mount--J ed in the support if) that its forward end may be shitted troni one side to the other relative to the forwardly extending' part 24 and thus vary the angle of the face t of the tool relative to its path of travel. The holder is shown as'having a boss 5l' forming,` pivot for the holder and secured in a socket 68 in the apron Q3 by means of a bolt 6ft. This permits the front end oi the holder to swing laterally between ears 70 on the part Q4 above referred tox Bolts 27 in. said ears position and hold thetool holder, as shown particularly in Fig. 7. A second boss 72, at the iront end of the holder extends upwardly through a slot T3 in the part 2i, and a nut 74 serves to clamp the tool holder when positioned.

lt Will be seen that the tool T, which is V- shaped in cross section, is arranged in a longitudinal slot. 7.5 in the holder 25 and secured therein by a bolt 76 passingv through the boss .72 and' accessible at the upper pro- 95 I jecting end of the, latter. A positioning-` plate 77 is secured to the front tace ot the holder 25 over the slot 75 to locate the front face t of the tool as shown -in the drawings.

it will be understood that the invention is not limited to the specific form. slioivn herein,- butis capable of modification in various ways Without departing from the spirit or scope ot' the claims.

ila'ving'thus described my invention, what 105 I claim and desire to secure by Letters Patent isrl. in a gearcutting machine, the combination with blank holdingn mechanism, oi a tool carrier and tool, means for operating the carrier to cause the tool to travel. in a, g'ei'ierally oblique path across the face of the blank, said means being adjustable to change the degree of Obliquity of saidpath, and means tor vadjusting the tool to vary the angle of its cutting tace .relative to its path yof travel.

In a gear cutting machine, the combination with 4blank holding mechanism, .of a tool carrier and tool, means for operating the carrier to cause the toolvto travel in a carved path on an are ota'circle and in a `f ,fenerally oblique direct-ion across the face o .t the blank, said means being' adjustable to change the position of the axis of said are, and means tor adjusting the tool-to Vary the angle ot' its cutting face relative to its path' of travel. A l

3. in a gear cutting machine, the combination vith the frame, of a tool carrier, means oei enirier, e @am piet/e iol: 'fiel' in its movement, ineens A c' said eem pleite about en axis, enti means of onjuist-ing the anis relative 'to Afue frame.

si, En e geen: cutting machine, the combination. with the frame, of e. tooi ezuiiei, means for movi-Ir the tooi carrier, e eem plate ioi' i eziiiiec in its movement, menne miiusting said oem pilote niiout, un unis, means toi botliy sliding the eem. Diete miteily reizitiveiy to the frame. o, in geen @uiting machine, the combinaition with the fiume, of n tooi ceri-ier, means o moving the ooi carrier, a eem pitite for guiciing seid cairiei' in its movement, a suppont on which said com plate is ndjustebiy, mounted, and moans for adiusting said support reietive to the freine.

6. L1 geen cutting machine, Athe combinetion 'with the frame, of a, tooiicnrriei, means for moving the 'tool carrier, ai eem plete for guiding seid carrier in its movement., a support, for said com piatte, means for adjusting and. iioitping said com plete on said support, and means for adjusting and holding the support on the iframe.

7. "in a geni' cutting machine, the combination 'with the frame, of a tool ce1-rief, means i'oi moving the tool carrier, a, anni plate for guiding `said Carrier in its movement, a. supper 'for said cuni plate, means for adjusting said @um plate about an exis on said support und looking it in adjusted position, un means for' adjusting the support with a movement oi twmsiation rela-tive to the frame and for locking it in adjusted position. j

'In testimony whereof I affix my signature in the presence oi two witnesses.

. CHARLES W. DEER.

Vitne-sses y CLAIR J. CoTE, LE Roi J. VILLIAMS. 

